US2345039A - Control and signal system - Google Patents

Control and signal system Download PDF

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Publication number
US2345039A
US2345039A US415604A US41560441A US2345039A US 2345039 A US2345039 A US 2345039A US 415604 A US415604 A US 415604A US 41560441 A US41560441 A US 41560441A US 2345039 A US2345039 A US 2345039A
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US
United States
Prior art keywords
relay
control
circuit
breaker
station
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US415604A
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English (en)
Inventor
Willard A Derr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Westinghouse Electric Corp
Original Assignee
Westinghouse Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Priority to US415604A priority Critical patent/US2345039A/en
Application granted granted Critical
Publication of US2345039A publication Critical patent/US2345039A/en
Priority to JP4231150A priority patent/JPS264177B1/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H02J13/00034—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving an electric power substation

Definitions

  • circuit breakers or other apparatus units are often selectively controlled by a supervisory control system and, in addition, are automatically controlled by automatic reclosing means.
  • automatic reclosing means usually functions to automatically reclose a circuit breaker when it trips for any reason, such as a fault on the power line controlled by the breaker, and to lock-out the reaker to prevent its reclosing in the event that it continues to trip after a .predetermined number of reclosures.
  • Such an automatic reclosing circuit breaker control system is disclosed in the patent to F. D. Gamel, No. 2,125,157, issued July 26, 1938.
  • supervisory control systems have functioned to indicate the position of each of several breakers and, in addition, to give a single alarm indication when any of the several breakers has tripped.
  • Such a -supervisory control system is described in the patent to H. P. Boswau, No. 2,208,535, issuedJuly 16,1940. If a breaker of such a system should be tripped and reclosed before the operator at the control station could observe which breaker had tripped, the operator would only know that one of the breakers had tripped and reclosed but would not know which breaker had operated.
  • a further object of the invention is to provide a supervisory control system which shall function in conjunction with an automatic reclosing systern for a plurality of remotelydisposed circuit breakers to indicate the position of each of the breakers, and to indicate and maintain an indifeatures of my invention.
  • the invention is represented in the drawing as a modification of the supervisory control system disclosed and fully described in the Boswau Patent No. 2,208,535, issued July 16, 1940, certain relays and circuits of the Boswau system having been changed and modied, other parts having been omitted, and some circuit connections having been added.
  • the parts of the Boswau system which are not affected in their functioning by the changes which were made to illustrate my invention are shown boxed at the control and remote stations and reference maybe had to the Boswau patent for a complete description of this apparatus and its functioning.
  • Other parts of thek system which correspond to the parts of the Boswau -system have the same reference numerals and additional parts are indicated by different reference characters.
  • circuit breaker control and supervisory apparatus at the control station and the substation which is associated with point I of the supervisory control system are the same as shown and described in the Boswau patent and function to control and indicate the position of a circuit breaker at the substation.
  • the supervisory control apparatus which is associated with point 4 has been modified to give an indication vof the operation of an automatic reclosing means for the circuit breaker which is associated with point I and to retain this indication until it is desired to release it.
  • the supervisory apparatus associated with point 4 at the substation has been modified by eliminating the circuit breaker trip coil and closing .coil shown in the Boswau patent, substituting a connection to negative battery through a current limiting resistor 500 and employing the operating circuit for the trip coil 3I9 of the Boswau patent as a shunting circuit to shunt down the relay 3I4 as desired.
  • ' may be disposed to be operated by the vautomatic reclosing system for the circuit breaker and may be a contact element operated when an automatic recloser for the circuit breaker, such as that shown -in the hereinbefore referred to patent to Gamel,
  • This holding circuit may be released when a trip impulse is received at the substation by the application of positive potential to the uppermost contact element of the relay 3 I 0, as explained in the Boswau patent, and thereby applying positive potential to the conductor 504 through a conductor 5
  • 4, and EIS have been added to relays
  • which is actuated in response to the operation of the au tomatic recloser, as hereinbefore described, closes, the energizingcircuit for the relay 3
  • the actuation of the relay 351i will cause its contact armature 348 to move from back contact to front contact position to thereby momentarily open the holding circuit for the relay 3
  • the supervisory control apparatus at the substation the control station will function, as described fully in the Boswau patent, hereinbefore referred to, to select point 4 at the control station and operate the point selecting relay
  • 34 at the. control station will cause the supervisory control apparatus to send ⁇ a checking code of impulses to the substation to operate the point selecting relay 3
  • the supervisory control system will function to send a code of 5 impulses under the control of the contact element 344 of the relay 3
  • 30 will operate Ato energize its own holding circuit and to energize the signal lamp
  • the supervisory points 1 and 4 are only two of several points in the system and that a plurality of circuit breakers may be controlled and supervised by similar pairs of points in the manner described hereinbefore.
  • the supervisory control system hereinbefore described Upon the opening and reclosure of any one of the breakers the supervisory control system hereinbefore described will give and retain an indication of which breaker has operated so that the operator may be informed of what operations have taken place at the substation. If a circuitI breaker is tripped and reclosed and then tripped and locked out, the supervisory points will indicate the open position of the breaker and the fact that a reclosure and subsequent tripping has occurred. If the breaker stays closed when reclosed this information will be apparent from the supervisory control indications which will show the closed position of the breaker and the fact that an opening and a reclosure has occurred.
  • the supervisory control apparatus which provides the A,reclosure indication over point 4 of the supervisory control system may be reset by momentarily pressing the point operate switch
  • 24 causes the energization of the relay 2
  • When the relay
  • 0 will cause a check code to be returned to the control station to operate the point relay
  • 34 will cause its contact armature 5I2 to complete the energizing circuit for the ⁇ relay 2
  • the release of the relay 3M Will cause a 4 impulse control code to be sent to the control station to operate the point relay
  • a trip code of 3 impulses will be sent to the control station under the control of the relay 3M in released position and the signalling relay
  • the supervisory control system will then be returned to normal condition ready for further circuit breaker operations and supervisory control indications of circuit .breaker positions and circuit -breaker reclosures.
  • a combined signalling and remote control system a plurality of control points at a control station and a plurality of corresponding control points at a remote station, a supervisory control system interconnecting the control and remote stations, a plurality of circuit breakers and automatic reclosing means therefor at the remote station, position indicating means at the control station for each of a plurality of said circuit breakers, means including said supervisory control system and certain of said control points at the control and remote stations controlled by the open and closed positions of said circuit breakers for causingv said position indicating means to indicate the positions of said circuit breakers, signalling means associated With other of the control points, each of said signalling means comprising a code control relay at the remote station, a signal relay, a signa] device responsive to the signal relay, and a release device at the control station, means responsive to the momentary operation of a diierent one of said automatic reclosing means at the remote station for energizing said code control relay, circuit means controlled by said code control relay for closing a holding circuit for said
  • a plurality of control po-ints at a control station a plurality of control points at a remote station, a selective supervisory control system interconnecting the control and remote stations, a plurality of circuit breakers having automatic reclosing means associated therewith at the remote station, means controlled by the circuit breakers and including certain of the control points each associated with a separate circuit breaker at each of the stations and the supervisory control system for signalling at the control station the position of the individual circuit breakers, and means controlled by the operation of the individual circuit breaker reclosing means and including other control points at each of the stations individual to the separate circuit breaker reclosing means and the supervisory control system for 4giving at the control station an individual indication and retaining the indication of the operation of any of the circuit breaker reclosing means separate from the breaker position indication.
  • a plurality of control points at a control station a plurality of control points at a remote station, a selective supervisory control system interconnecting the control and remote stations, a plurality of circuit breakers having automatic reclosing means associated therewith at the remote station, means controlled by the circuit breakers and including certain of the control points each associated with a separate circuit .breaker at each of the sta,- tions and the supervisory control system for controlling and signalling the position at the control station of the individual circuit breakers, means controlled by the operation of the individual circuit breaker reclosing means and including other control points at each of the stations individual to the separate circuit breaker reclosing means and the supervisory control system for giving at the control station an individual indication and retaining the indication of the operation of any of the circuit breaker reclosing means, separate from the breaker position indication. and means associated with the individual reclosure indication points at the control station for resetting the individual indicating systems for subsequent operation.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
US415604A 1941-10-18 1941-10-18 Control and signal system Expired - Lifetime US2345039A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US415604A US2345039A (en) 1941-10-18 1941-10-18 Control and signal system
JP4231150A JPS264177B1 (enrdf_load_stackoverflow) 1941-10-18 1950-04-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US415604A US2345039A (en) 1941-10-18 1941-10-18 Control and signal system

Publications (1)

Publication Number Publication Date
US2345039A true US2345039A (en) 1944-03-28

Family

ID=23646388

Family Applications (1)

Application Number Title Priority Date Filing Date
US415604A Expired - Lifetime US2345039A (en) 1941-10-18 1941-10-18 Control and signal system

Country Status (2)

Country Link
US (1) US2345039A (enrdf_load_stackoverflow)
JP (1) JPS264177B1 (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS264177B1 (enrdf_load_stackoverflow) 1951-07-30

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